Finding the Fourth Proportional to 5,404.15, 8,101.43 and 2,591.46

Step by Step Solution

1. Step 1: Write the proportion equation
   5,404.15 : 8,101.43 = 2,591.46 : x
2. Step 2: Convert to fraction form
   5,404.15/8,101.43 = 2,591.46/x
3. Step 3: Cross multiply
   5,404.15x = 8,101.43 × 2,591.46
4. Step 4: Simplify right side
   5,404.15x = 20,994,528.55
5. Step 5: Solve for x
   x = 20,994,528.55/5,404.15
6. Step 6: Final answer
   x = 3,884.89